import { test, beforeEach, afterEach } from 'node:test'
import assert from 'node:assert/strict'
import { GiteaClient } from '../gitea-client.js'

const realFetch = globalThis.fetch

afterEach(() => {
  globalThis.fetch = realFetch
})

test('建構子在有 token 時帶上 Authorization 標頭', () => {
  const client = new GiteaClient({ token: 'abc' })
  assert.equal(client.headers.Authorization, 'token abc')
})

test('建構子在無 token 時不帶 Authorization 標頭', () => {
  const client = new GiteaClient({})
  assert.equal(client.headers.Authorization, undefined)
})

test('fetchAllPages 逐頁讀取直到空陣列', async () => {
  const pages = {
    1: [{ id: 1 }, { id: 2 }],
    2: [{ id: 3 }],
    3: [],
  }
  const requested = []
  globalThis.fetch = async (url) => {
    const page = new URL(url).searchParams.get('page')
    requested.push(page)
    return { ok: true, json: async () => pages[page] }
  }

  const client = new GiteaClient({})
  const items = await client.fetchAllPages('https://example.com/api')

  assert.deepEqual(
    items.map((i) => i.id),
    [1, 2, 3],
  )
  assert.deepEqual(requested, ['1', '2', '3'])
})

test('fetchAllPages 在 HTTP 錯誤時丟出例外', async () => {
  globalThis.fetch = async () => ({ ok: false, status: 500 })
  const client = new GiteaClient({})
  await assert.rejects(
    () => client.fetchAllPages('https://example.com/api'),
    /HTTP 500/,
  )
})

test('deleteResource 回傳 HTTP 狀態碼', async () => {
  globalThis.fetch = async (url, opts) => {
    assert.equal(opts.method, 'DELETE')
    return { status: 204 }
  }
  const client = new GiteaClient({})
  assert.equal(await client.deleteResource('https://example.com/api/1'), 204)
})